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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Synthesis and photophysical properties of rare earth-containing luminescent silicone resin from cooperative molecular design and assembly
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Synthesis and photophysical properties of rare earth-containing luminescent silicone resin from cooperative molecular design and assembly

机译：协同分子设计与组装制备含稀土发光有机硅树脂及其光物理性能

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摘要

Two series of rare earth-containing luminescent silicone resins have been achieved by sol-gel method. The precursors which were modified via acylamidation reactions behave as structural molecular bridges. The silanol groups were used to form the host of silicone resin and the chromophore groups were used to exhibit the luminescence by the cooperative assembly courses with rare earth ions (Eu~(3+), Tb~(3+), and Dy~(3+)). The modifications were determined by Fourier transform infrared (FTIR), ~1H-NMR spectra and diffuse reflectance ultraviolet-visible spectra (DRUVS). Scanning electronic microscopy (SEM, micrometric scale) and X-ray diffraction studies (XRD, nanometric scale) were employed to evaluate the frameworks of silicone resin materials. Narrow-width red emission was observed in Eu (III) resin materials and green emissions were obtained in Tb (III) resin materials and Dy (III) resin materials, indicating that an efficient intramolecular energy transfer took place in these resins. Further investigations into the luminescent properties of these materials show that the luminescence in these materials is quite operative by means of the design of molecular structure.
机译：通过溶胶-凝胶法已经获得了两个系列的含稀土的发光有机硅树脂。通过酰化反应改性的前体表现为结构分子桥。硅烷醇基团用于形成有机硅树脂的主体，发色团基团通过与稀土离子（Eu〜（3 +），Tb〜（3+）和Dy〜（ 3+））。通过傅立叶变换红外（FTIR），〜1H-NMR光谱和漫反射紫外可见光谱（DRUVS）确定修饰。扫描电子显微镜（SEM，微米级）和X射线衍射研究（XRD，纳米级）用于评估有机硅树脂材料的骨架。在Eu（III）树脂材料中观察到窄宽度的红色发射，而在Tb（III）树脂材料和Dy（III）树脂材料中获得绿色的发射，表明这些树脂中发生了有效的分子内能量转移。对这些材料的发光性质的进一步研究表明，通过分子结构设计，这些材料中的发光是相当有效的。

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